For the purpose of this chapter, unless it is plainly evident from the context that a different meaning is intended, certain terms used herein are defined as follows:
AIR GAP SEPARATIONA physical break between a supply pipe and a receiving vessel. The air gap shall be at least double the diameter of the supply pipe, measured vertically above the top rim of the vessel, and in no case less than one inch.
APPROVED DOUBLE-CHECK VALVE ASSEMBLYAn assembly of at least two independently acting approved single-check valves including tightly closing shutoff valves on each side of the check valve assemble and suitable test cocks plus connections available for testing and water tightness of each valve.
APPROVED REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTION DEVICE (RPZ)A device incorporating two or more single-check valves and an automatically operating differential relief valve located between the two checks, two shutoff valves and equipped with necessary appurtenances for testing. The device shall operate to maintain the pressure in the zone between the two check valves, less than the pressure on the public water supply side of the device. At cessation of normal flow, the pressure between the check valves shall be less than the supply pressure. In case of leakage of either check valve, the differential relief valve shall operate to maintain this reduced pressure by discharging to the atmosphere. When the inlet pressure is two pounds per square inch or less, the relief valve shall open to the atmosphere, thereby providing an air gap in the device. To be approved, these devices must be readily accessible for maintenance and testing and installed in a location where no part of the device will be submerged.
APPROVED SINGLE-CHECK VALVEA check valve that seats readily and completely. It must be carefully machined to have free-moving parts and assured watertightness. The face of the closure element and valve seat must be bronze, composition, or other noncorrodible material which will seat tightly under all prevailing conditions of field use. Pins and bushings shall be of bronze or other noncorridible, nonsticking material, machined for easy, dependable operation. The closure element (e.g., clapper) shall be internally weighted or otherwise internally equipped to promote rapid and positive closure in all sizes where this feature is obtainable.
APPROVED WATER SUPPLYAny water supply approved by, or under the public health supervision of, a public health agency of the State of New York, the County of Rensselaer, or the Town of East Greenbush. In determining what constitutes an approved water supply, the Department of Public Health of the State of New York (herein called "State Health Department") shall have the final judgment as to its safety and potability.
BACKFLOWA flow condition, induced by a differential in pressure, that causes the flow of water or other liquids and/or gases into the distribution pipes of a public water supply from any source other than its intended source.
CAPITAL COSTSThose fixed costs which must yearly be borne by the district in making annual payments on indebtedness, which shall include land acquisition, required reserves for repairing or replacement and any other cost which is fixed, recurring and not includable for operation and maintenance.
COMMISSIONERThe Commissioner of Public Works of the Town of East Greenbush, or his authorized representatives.
CONSUMERAny person to whom water is sold and/or furnished from the Town of East Greenbush.
CONTAMINATIONAn impairment of the quality of the Town water supply by the presence of any foreign substance (organic, inorganic, radiological or biological) to a degree which creates a hazard to the public health.
COUNTY HEALTH OFFICERThe Rensselaer County Health Officer, his assistants, or authorized deputies acting as, or any other person appointed as Health Officer of the County of Rensselaer.
CROSS-CONNECTIONAny unprotected connection between any part of the Town water distribution system used or intended to supply water for drinking purposes and any source or system containing water or substance that is not or cannot be approved as safe, wholesome and potable for human consumption.
DISTRICTThe Town of East Greenbush Consolidated Water District or any extension thereto.
EQUIVALENT DWELLING UNITA unit of measurement determined by the type of real property classification used within the formula to compute the annual payment of capital costs. The Town Board may from time to time amend the chart delineating the real property classification and corresponding equivalent dwelling unit.
NONTOXIC SUBSTANCEAny substance of a nonpoisonous nature that may create a moderate or minor hazard to the water supply system.
OPERATION AND MAINTENANCE COSTSThose variable charges which the district each year incurs for operation and maintenance. This charge shall include all those costs authorized by the State of New York and is to be yearly approved by the Town Board.
PERSONAny natural person, firm, association, organization, partnership, trust or association of persons, joint venture, corporation or company, and includes the United States, the State of New York, the County of Rensselaer, and Special Purpose District, and any officer or agent thereof.
PREMISESIntegrated land area, including improvements thereon, undivided by public thoroughfares or water distribution mains of the Town of East Greenbush and where all parts of the premises are operated under the same management and for the same purpose.
PROTECTIVE DEVICEAny of the following devices:
(2) Approved reduced pressure principle backflow prevention device (RPZ).
(3) Approved double-check valve assembly.
(4) Approved single-check valve assembly.
SERVICE CONNECTIONThe terminal end of a service connection from the Town water supply at its point of delivery to the consumer. If a meter is installed, "service connection" means the downstream end of the meter. No unprotected takeoffs from the service line ahead of any meter or backflow protective device located at the point of delivery to the consumer shall be permitted.
TOWNThe Town of East Greenbush.
TOWN WATER SUPPLYAn approved water supply sold and delivered to consumers' premises through the water distribution system of the Town of East Greenbush.
TOXIC SUBSTANCEAny substance (liquid, solid or gaseous), including raw sewage and lethal substances, that when introduced into the water supply system creates or may create a danger to the health and well-being of the consumer.